| Houston to Clacton-on-Sea | 4,890.19 mi (7,869.99 km) |
| Houston to Clay Cross | 4,754.11 mi (7,651.01 km) |
| Houston to Clayton | 4,723.11 mi (7,601.11 km) |
| Houston to Clayton le Moors | 4,701.55 mi (7,566.41 km) |
| Houston to Cleckheaton | 4,728.14 mi (7,609.20 km) |
| Houston to Cleethorpes | 4,797.05 mi (7,720.11 km) |
| Houston to Clevedon | 4,741.35 mi (7,630.47 km) |
| Houston to Clifton | 4,769.90 mi (7,676.41 km) |
| Houston to Clifton | 4,745.42 mi (7,637.01 km) |
| Houston to Cliftonville | 4,911.76 mi (7,904.71 km) |
| Houston to Clitheroe | 4,698.89 mi (7,562.14 km) |
| Houston to Clydebank | 4,576.52 mi (7,365.19 km) |
| Houston to Coalville | 4,767.13 mi (7,671.95 km) |
| Houston to Coatbridge | 4,591.07 mi (7,388.61 km) |
| Houston to Cobham | 4,841.78 mi (7,792.09 km) |
